Manual

ManualsBrandsHydrolevel ManualsAccessories for water1150

83 Water St. • New Haven, CT 06511 • Phone: (203) 776-0473 • FAX: (203) 773-1019 • www.hydrolevel.com

• ADVANCED SOLID STATE DESIGN

• TEST BUTTON FOR EASY DIAGNOSTICS

• POWER AND LOW WATER LED INDICATORS

• COMPACT SIZE ALLOWS FOR MOUNTING IN TIGHT SPACES

• DESIGNED FOR GAS AND OIL FIRED BOILERS

Step 

Step 

Low Water Cut-Off

For Residential

Hot Water Boilers

120 VAC Operating Voltage

Model 1150

Determine Mounting Location

The Safgard 1150 must be installed at or above the

minimum safe water level established by the boiler

manufacturer. The 1150 can be installed directly into

the boiler if a suitable tapping is available

훽

. The

1150 can also be installed in the boiler piping using a

standard 3/4" tee

훾

IMPORTANT: Check for adequate clearance

(minimum 1/4") from metal probe sensor to any

surface inside the boiler or pipe.

Do not install in a location that could hold or trap

water in the event of a low water condition.

Remove center

extended nut.

Apply pipe

sealing

compound to

probe threads

and install in

boiler or tee.

Tighten so that

the two smaller

extended nuts

are horizontally

aligned.

Mount the control box on the probe by aligning the

keyhole slots with the two extended nuts. Replace

the center extended nut. Secure the control box by

tightening all three extended nuts.

IMPORTANT: Extended nuts must be tightened

securely for proper grounding.

WARNING: To prevent electrical shock or equipment damage, power must be off during installation or servicing of the control. To pre-

vent serious burns, the boiler should be thoroughly cooled before installing or servicing control. Only qualified personnel may install or

service the control in accordance with local codes and ordinances. Read instructions completely before proceeding.

Step 

Model 1150 Instructions: Model 1150 Instructions 9/24/10 9:17 AM Page 3

Summary of content (4 pages)

PAGE 1
Model 1150 Instructions: Model 1150 Instructions 9/24/10 9:17 AM Page 3 • ADVANCED SOLID STATE DESIGN Model 1150 Low Water Cut-Off For Residential Hot Water Boilers 120 VAC Operating Voltage • TEST BUTTON FOR EASY DIAGNOSTICS • POWER AND LOW WATER LED INDICATORS • COMPACT SIZE ALLOWS FOR MOUNTING IN TIGHT SPACES • DESIGNED FOR GAS AND OIL FIRED BOILERS WARNING: To prevent electrical shock or equipment damage, power must be off during installation or servicing of the control.
PAGE 2
Model 1150 Instructions: Model 1150 Instructions 9/24/10 STANDARD WIRING METHOD 9:17 AM Page 4 USE WIRE NUTS FOR ALL CONNECTIONS This wiring method will shut down all power to the boiler in the event of a low water condition. Connect the black wire (H) and one of the yellow wires (CUT-OFF) from the Safgard 1150 to the hot 120 VAC lead coming from the service switch. Step Connect the white wire (N) from the Safgard 1150 to the neutral 120 VAC lead and to the (L2) boiler connection.
PAGE 3
Model 1150 Instructions: Model 1150 Instructions 9/24/10 9:17 AM Page 5 OPERATIONAL TEST PROCEDURE IMPORTANT: Do not run boiler unattended until the following procedure is completed 1. Before raising the water level above the Model 1150, turn on power to the boiler and set the thermostat to call for heat. Both the green “POWER” LED and amber “LOW WATER” LED should illuminate. The burner should not fire.
PAGE 4
Model 1150 Instructions: Model 1150 Instructions 9/24/10 9:17 AM Page 2 DIMENSIONS SPECIFICATIONS VOLTAGE BURNER CONTACTS MAX PRESSURE MAX WATER TEMPERATURE 120 VAC, 60 HZ 5.8 FLA, 34.